InChI=1/C20H20N4O/c1-3-23-16-11-10-15(12-17(16)24(4-2)20(23)25)19-18(21-13-22-19)14-8-6-5-7-9-14/h5-13H,3-4H2,1-2H3,(H,21,22)/p+1/fC20H21N4O/h21-22H/q+1 850E941F72927AFB